from . import profile_bp
from flask import render_template
from flask import g
from info.utlis.common import login_user_data
from flask import request
from flask import current_app
from flask import jsonify
from flask import session
from info import db
from info.utlis.response_code import RET
from info.utlis.image_store import qiniu_image_store
from info import constants
from info.models import User, Category, News

""""当前用户关注列表"""
@profile_bp.route('/user_follow')
@login_user_data
def user_followed_list():
    """当前用户关注列表"""
    # 1.获取参数
    p = request.args.get("p", 1)
    user = g.user
    # 2.参数校验
    try:
        p = int(p)
    except Exception as e:
        current_app.logger.error(e)
        p = 1
    # 3.逻辑处理
    # lazy="dynamic"如果真正用到里面的值，就会给你返回一个列表数据，如果只是简单的查询就会返回一个查询对象给你
    user_list = []
    current_page = 1
    total_page = 1
    if user:
        try:
            # 指明了lazy=dynamic
            # user.followed 如果取直接使用 当前用户的偶像列表
            # user.followed 如果取查询 查询对象
            paginate = user.followed.paginate(p, constants.USER_COLLECTION_MAX_NEWS, False)
            user_list = paginate.items
            current_page = paginate.page
            total_page = paginate.pages
        except Exception as e:
            current_app.logger.error(e)

    # 用户对象列表转成字典列表
    user_dict_list = []
    for user in user_list if user_list else []:
        user_dict_list.append(user.to_dict())

    data = {
        "users": user_dict_list,
        "current_page": current_page,
        "total_page": total_page
    }
    # 4.返回值
    return render_template("news/user_follow.html", data=data)


"""新闻列表"""
# /user/collection?p=1
@profile_bp.route('/news_list')
@login_user_data
def news_list():
    # 1.获取参数
    p = request.args.get("p", 1)
    user = g.user
    # 2. 参数校验
    try:
        p = int(p)
    except Exception as e:
        current_app.logger.error(e)
        p = 1
    # 3.逻辑处理
    # lazy="dynamic"如果真正用到里面的值， 就会给你返回一个列表数据， 如果只是简单的查询就会返回一个查询对象给你
    news_list = []
    current_page = 1
    total_page = 1

    if user:
        try:
            paginate = News.query.filter(News.user_id == user.id).\
                paginate(p, constants.USER_COLLECTION_MAX_NEWS, False)
            news_list = paginate.items  # 新闻数
            current_page = paginate.page    # 页码
            total_page = paginate.pages  # 总页数
        except Exception as e:
            current_app.logger.error(e)

    # 新闻对象列表转成字典列表
    news_dict_list = []
    for news in news_list if news_list else []:
        news_dict_list.append(news.to_review_dict())

    data = {
        "news_list": news_dict_list,
        "current_page": current_page,
        "total_page": total_page
    }
    # 4. 返回值
    return render_template("news/user_news_list.html", data=data)





"""展示新闻发布页面 发布新闻的后端逻辑"""
@profile_bp.route('/news_release', methods = ['POST', 'GET'])
@login_user_data
def news_release():
    if request.method == "GET":
        try:
            categories = Category.query.all()
        except Exception as e:
            current_app.logger.error(e)

        # 分类对象列表转成字典列表
        category_dict_list = []
        for category in categories if categories else []:
            category_dict_list.append(category.to_dict())

        # 注意点： 需要移除最新分类
        category_dict_list.pop(0)
        return render_template("news/user_news_release.html", data={"categories":category_dict_list})

    # POST请求发布新闻
    # 1. 获取参数
    title = request.form.get("title")
    category_id = request.form.get("category_id")
    digest = request.form.get("digest")
    index_image = request.files.get("index_image")
    content = request.form.get("content")
    source = "个人发布"
    user = g.user
    # 2.参数校验
    # 2.参数校验
    if not all([title, category_id, digest, index_image, content]):
        return jsonify(errno=RET.PARAMERR, errmsg="参数不足")
    if not user:
        return jsonify(errno=RET.SESSIONERR, errmsg="用户未登录")

    # 3. 逻辑处理
    # 获取图片二进制
    image_data = index_image.read()
    try:
        image_name = qiniu_image_store(image_data)
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno=RET.THIRDERR, errmsg="上传图片到七牛云失败")
    # 创建新闻模型
    news = News()
    news.title = title
    news.category_id = category_id
    news.digest = digest
    news.index_image_url = constants.QINIU_DOMIN_PREFIX + image_name
    news.content = content
    news.source = source
    news.user_id = user.id
    # 新闻处于审核中
    news.status = 1

    # 保存到数据库
    try:
        db.session.add(news)
        db.session.commit()
    except Exception as e:
        current_app.logger.error(e)
        db.session.rollback()
        return jsonify(errno=RET.DBERR, errmsg="保存新闻对象到数据库异常")

    # 4. 返回值处理
    return jsonify(errno=RET.OK, errmsg="新闻发布成功")




"""用户收藏的列表展示"""
# /user/collection?p=1
@profile_bp.route('/collection')
@login_user_data
def user_collection():
    # 1.获取参数
    p = request.args.get("p", 1)
    user = g.user

    # 2. 参数校验
    try:
        p = int(p)
    except Exception as e:
        current_app.logger.error(e)
        p = 1

    # 3.逻辑处理
    # lazy="dynamic"如果真正用到里面的值， 就会给你返回一个列表数据， 如果只是简单的查询就会返回一个查询对象给你
    news_list = []
    current_page = 1
    total_page = 1

    if user:
        try:
            paginate = user.collection_news.paginate(p, constants.USER_COLLECTION_MAX_NEWS, False)
            news_list = paginate.items
            current_page = paginate.page
            total_page = paginate.pages
        except Exception as e:
            current_app.logger.error(e)


    # 新闻对象列表转成字典列表
    news_dict_list = []
    for news in news_list if news_list else []:
        news_dict_list.append(news.to_review_dict())

    data = {
        "collections" : news_dict_list,
        "current_page" : current_page,
        "total_page": total_page
    }
    # 4. 返回值
    return render_template("news/user_collection.html", data = data)

"""展示修改密码页面 修改密码后端逻辑"""
@profile_bp.route('/pass_info', methods=['POST', 'GET'])
@login_user_data
def pass_info():

     if request.method == "GET":
         return render_template("news/user_pass_info.html")
     
     # post请求修改密码
     # 1. 获取参数
     old_password = request.json.get("old_password")
     new_password = request.json.get("new_password")
     user = g.user
     
     # 2. 校验参数
     if not all([old_password, new_password]):

         return jsonify(errno=RET.PARAMERR, errmsg="参数不足")
     
     if not user:
         return jsonify(errno=RET.SESSIONERR, errmsg="用户未登录")

     # 3. 逻辑处理
     if not user.check_passowrd(old_password):
         return jsonify(errno=RET.PARAMERR, errmsg="旧密码填写错误")
     # 将新密码赋值给password属性
     user.password = new_password
     
     try:
         db.session.commit()
     except Exception as e:
         db.session.rollback()
         current_app.logger.error(e)
         return jsonify(errno=RET.DBERR, errmsg="保存用户对象异常")

     # 4. 返回值
     return jsonify(errno=RET.OK, errmsg="修改密码成功")



"""展示用户头像页面&修改用户头像接口"""
@profile_bp.route('/pic_info', methods=['POST', 'GET'])
@login_user_data
def pic_info():
    user = g.user

    data = {
        "user_info": user.to_dict()
    }

    if request.method == "GET":
        return render_template("news/user_pic_info.html", data = data)

    # POST获取用户上传的图片二进制数据上传到七牛云
    avatar_data = request.files.get("avatar").read()
    user = g.user

    # 校验参数
    if not avatar_data:
        return jsonify(errno=RET.NODATA, errmsg="图片数据不能为空")
    if not user:
        return jsonify(errno=RET.SESSIONERR, errmsg="用户未登录")

    # 逻辑处理
    try:
        # 调用封装好的方法将图片上传到七牛云
        image_name = qiniu_image_store(avatar_data)
    except Exception as e:
        current_app.logger.error(e)
        return jsonify(errno=RET.THIRDERR, errmsg="上传图片到七牛云失败")
    # 只将图片名称存储，防止后期修改七牛云域名
    user.avatar_url = image_name

    try:
        db.session.commit()
    except Exception as e:
        current_app.logger.error(e)
        db.session.rollback()
        return jsonify(errno=RET.DBERR, errmsg="保存用户url失败")

    # 组织响应对象
    full_url = constants.QINIU_DOMIN_PREFIX + image_name
    data = {
        "avatar_url" : full_url
    }
    return jsonify(errno=RET.OK, errmsg="上传图片到七牛云成功", data=data)


"""获取用户基本资料页面,修改用户基本资料页面"""
# GET: /user/base_info
@profile_bp.route('/base_info', methods=["POST", "GET"])
@login_user_data
def base_info():
    user = g.user

    if request.method == 'GET':
        data = {
            "user_info": user.to_dict() if user else None
        }
        return render_template("news/user_base_info.html", data=data)


    # POST请求 修改用户基本资料
    #  1. 获取参数
    params_dict = request.json
    nick_name = params_dict.get("nick_name")
    signature = params_dict.get("signature")
    gender = params_dict.get("gender")

    # 2.1 非空判断
    if not all([nick_name, signature, gender]):
        return jsonify(errno=RET.PARAMERR, errmsg="参数不足")

    # 2.2 用户是否登录判断
    if not user:
        return jsonify(errno=RET.SESSIONERR, errmsg="用户未登录")

    if gender not in ["MAN", "WOMAN"]:
        return jsonify(errno=RET.PARAMERR, errmsg="action数据填写错误")

    # 3.逻辑处理
    user.nick_name = nick_name
    user.signature = signature
    user.gender = gender
    # 更新session中nick_name数据
    session["nick_name"] = nick_name

    # 将修改操作保存回数据库
    try:
        db.session.commit()
    except Exception as e:
        current_app.logger.error(e)
        db.session.rollback()
        return jsonify(errno=RET.DBERR, errmsg="修改用户数据异常")

    # 4.返回值处理
    return jsonify(errno=RET.OK, errmsg="修改用户数据成功")



"""返回用户个人中心页面"""
# /user/info
@profile_bp.route('/info')
@login_user_data
def user_info():
    user = g.user
    data = {
        "user_info": user.to_dict() if user else None
    }

    return render_template("news/user.html", data=data)
